package com.atguigu.gulimall.product.service.impl;


import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.atguigu.gulimall.product.vo.SpuItemBaseAttrGroupVo;
import com.mysql.cj.util.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;


import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {
    @Autowired
    AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        String key = (String) params.get("key");
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        if(!StringUtils.isNullOrEmpty(key)){
            wrapper.and((obj)->{
                obj.eq("attr_group_id",key).or().like("attr_group_name",key);
            });
        }
        if(catelogId == 0){
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return  new PageUtils(page);
        }else {
            wrapper.eq("catelog_id", catelogId);
            //select * from pms_attr where catelog_id=? and  (attr_group_id=key or attr_group_name like %key%)
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return  new PageUtils(page);
        }
    }

    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupsWithAttrByCatId(Long catId) {
        List<AttrGroupEntity> groupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catId));
        List<AttrGroupWithAttrsVo> collect = groupEntities.stream().map(group -> {
            AttrGroupWithAttrsVo groupRelationVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(group, groupRelationVo);
            List<AttrEntity> relationAttr = attrService.getRelationAttr(group.getAttrGroupId());
            groupRelationVo.setAttrs(relationAttr);
            return groupRelationVo;
        }).collect(Collectors.toList());

        return collect;
    }

    @Override
    public List<SpuItemBaseAttrGroupVo> getAttrWithAttrsBySpuId(Long spuId,Long catalogId) {
        //1.查出当前spu对应的所有树形以及当前属性下所对应的值
        List<SpuItemBaseAttrGroupVo> vos= this.baseMapper.getAttrWithAttrsBySpuId(spuId,catalogId);
        return vos;
    }


}